The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.

A cso file extension is used for a common disk format for Sony Playstation, similar to ISO. Very often used for backups of game disks. CSO format needs a special customized firmware so PSP can read them.

DAX

A dax file extension is related to the PSP Compressed CD image format used by Sony Playstation Portable.

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